Statt



(No Model.) v

G. W. MORSTATT.

SASH HOLDER No. 460,690. Patented 001;. 6,1891.

NITED STATES ATENT OFFICE.

GEORGE IVILLIAH MORSTATT, OF N EIV YORK, N. Y.

SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 460,690, dated October6, 1891.

Application filed February 4,1891.-

To all whom it may concern.-

Be it known that I, GEORGE WILLIAM Moa STATT, of the city and county ofNew York, in the State of New York, have invented a new and usefulImprovement in Retarding Devices for Sliding Shutters, Screens, and\Vindow-Frames, of which the following is a specification.

Myinvention relates to an improvement in retarding devices for slidingshutters, screens, and the like, in which provision is made for holdingthe sliding part at a desired height by the friction due to the lateralpressure of the device against the casing in which the part slides.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Figure 1 is a view of a portion of asliding shutter an d its casing, partly in section, showing the positionof the retarding device therein. Fig. 2 is a transverse section throughthe shutter frame and casing and longitudinally through the retardingdevice. Figs. 3, I, and 5 represent the parts of the retarding device indetail, and Fig. 6 represents a modified form of the device and aportion of the easing adapted to use in connection therewith.

The device as a whole is of such construction that it may be insertedfrom the outer edge of the frame into a hole which extends through theside frame into the end frame, and when the shutter, screen, &c., withthe device located therein, is adjusted in its casing the retardingdevice is wholly concealed.

In the present instance, A and A represent the sides of the casing,between which the shutter, screen, &c., is to slide, and I have providedthe inner face of said sides with oppositely-placed tongues a to formguides for the upward and downward movement of the sliding part. Inaddition to the tongues a, I have provided one of the faces of the sidesA, for example, with grooves a upon the opposite sides of the tongue a,formed by projecting the edges of the side inwardly, bringing theirfaces flush with the face of the tongue a; or, what amounts to the samething, I provide the inner face of the side A with a pair of grooves a,spaced apart, so as to leave a tongue a between them.

The frame of the shutter, screen, &c., is

Serial No. 380,206. (No model.)

represented by B, and its sides are provided with grooves 19, whichcorrespond to the tongues a on the casing. It is intended that thegroove 2) in one side of the frame B shall be sufficiently deep to allowthe'parts of the frame upon the opposite sides of the groove to enterinto the grooves a in the casing far enough to allow the opposite edgeof the frame B to swing clear of the tongue at upon the opposite side ofthe casing for the pur-' pose of adjusting the shutterin its casing orremovingit therefrom.

The frame 13 is provided with a hole or socket 1), extending from itsedge inwardly through its side frame and to such a distance within itsend frame as will admit of the insertion of a spring of such length asto admit of an extended adjustment of the device to suit differentweights to be held.

0 represents the spring, which is preferably such size as to be receivedwith an easy fit within the bore, and may be two inches (more or less)and as stiff as the particular application of it may require. A plungerhaving a bearing for the end of the spring consists of a disk. D,adapted to fit easily Within the bore and having a reduced portion (Zprojecting inwardly from its face, adapted to enter within the end ofthe coil-spring O. Centrally from the outer face of the disk D athreaded stem cl projects to a point near the bottom of the groove binthe frame. A socket-piece E, provided with projections e on its innerend, has an opening through its end for the reception of the threadedstem d, and is of such size as to admit of being forced intothe end ofthe hole in the frame and to fit so snugly as to be retained in positionby its frictional contact with. the wall of the hole. The projections eon the inner end of the socket-piece E are adapted to engage recesses 01in the face of the disk D and prevent the latterfrom rotating when anadjustment of the bearing or pressure-head upon the stem is takingplace.

The hearing or pressure head F consists of a cylindrical piece providedwith a threaded perforation f, extending longitudinally therein andadapted to receive the threaded stem d. The head is adapted to fiteasily within the socket-piece E, and is provided on its outer end witha groove f, adapted to receive the tongue to at the side of the casing.

YVhen engaged with the outer end of the threaded stem (1, it willproject nearlyits entire length outwardly beyond the bottom of thegroove 6, and in order to insert the frame of the shutter or screen inposition within the casing it is necessary to force the hearing orpressure head inwardly against the tension of the spring 0, the latter,when the frame is adjusted, exerting its tension against the tongue a tohold the shutter from sliding. Various degrees of tension may beobtained by screwing the bearing or pressure head toward the bottom ofthe socket-piece and thereby causing various different degrees ofcompression of the spring 0. By locating the spring within the hole orsocket Z) inwardly of the plunger I am enabled to use a spring ofsufficient length to give the required resiliency and pressure, so thatthe screen or shutter may be readily adjusted or removed and at the sametime will be held in the desired sliding adjustment. It will,furthermore, be observed that by putting the pressure upon the tongueinstead of against the side of the easing I am enabled to secure acloser grip, and hence obtain a greater holding etfect for a giventension of spring. The groove in the end of the head also prevents thelatter from rotating and thereby changing its adj ustment as the shutteris slid back and forth. I may, however, where it is desirable that thereshould be no tongue a, utilize a flat head bearing or a bearing with arounded head, as shown in Fig. 6, and in such case the face of thecasing may be either left flat or may be provided with slightdepressions G at short intervals to more securelysustain the slidingpart and at the same time admit of its being forced up and down atpleasure.

\Vhat I claim is- 1. A retaining device for shutters, screens, 820.,comprising a socket-piece adapted to be inserted in the frame, a plungerlocated at the inner end of the socket-piece and having a screw-threadedstem which projects through the inner end of the socketpiece within thesocket-piece, a spring having a bearing at one end against the plunger,the socket-piece and the plunger being provided the one with aprojection and the other with an abutment adapted to engage theprojection and prevent the plunger from turning, and a pressure-headengaged with the threaded stem of the plunger, substantially as setforth.

2. The retaining device comprising the socket-piece, the plunger locatedat the inner end of the socket-piece and provided with a stem extendingthrough the inner end of the socket-piece, the spring engaged with theplunger on the side opposite that on which the socket-piece is located,and a pressurehead having a groove therein adapted to engage a tongue onthe casing, substantially as set forth.

GEORGL WILLIAM lllORS'lA'lT.

\Vitnesses:

FREDK. HAYNES, K. E. PEMBLETON.

